Simple Piano: Play & Learn
by AIHUNTERS, UAB · 1448469792
Most of the 762 lines in Simple Piano: Play & Learn's app-ads.txt (simplepiano.co) are RESELLER lines: 733 against 29 DIRECT, across 138 ad systems. 311 of the 673 lines checked name a seller ID the network's sellers.json does not list, so buyers that check drop those paths. The file last changed on 11 October 2026; the same file covers 3 apps of this developer.
Store data
- Rating
- 4.38
- Installs
- —
- Category
- Music
- Contains ads
- Yes
6,396 ratings
Not published by Apple
Offers in-app purchases
app-ads.txt
- Domain
- simplepiano.co
- Status
- Found (200)
- Lines
- 762
- DIRECT / RESELLER
- 29 / 733
- Parse errors
- 105
- Last fetched
- Oct 11, 2026
- Last changed
- Oct 11, 2026
sellers.json cross-check
762 lines checked
Verified
259
Errors
367
Warnings
64
- Seller ID not found 311
- DIRECT but intermediary 9
- RESELLER but publisher 47
- Seller type BOTH 42
- Confidential seller 5
- No sellers.json 17
- Unchecked 72
Declared supply tree
29 direct accounts across 18 direct sellers · 255 resellers buying from them · 478 not matched
| Direct seller | Accounts | Resold by | Issues |
|---|---|---|---|
| bidmachine.io | 1 | 62 resellers: video.unrulymedia.com, pubmatic.com, appnexus.com … | 1 |
| inmobi.com | 1 | 20 resellers: pubmatic.com, rubiconproject.com, blis.com … | 1 |
| chartboost.com | 1 | 10 resellers: pubmatic.com, rubiconproject.com, uis.mobfox.com … | 0 |
| opera.com | 2 | 6 resellers: media.net, rubiconproject.com, smartadserver.com … | 2 |
| rhebus.works | 9 | 5 resellers: smartadserver.com, video.unrulymedia.com, xandr.com … | 5 |
| start.io | 1 | 5 resellers: pubmatic.com, pubnative.net, rubiconproject.com … | 0 |
| google.com | 1 | 3 resellers: rubiconproject.com, pubmatic.com … | 0 |
| uis.mobfox.com | 1 | 2 resellers: xad.com, pubmatic.com | 1 |
| appodeal.com | 1 | 1 reseller: mars.media | 1 |
| rubiconproject.com | 3 | — | 3 |
| criteo.com | 1 | — | 1 |
| indexexchange.com | 1 | — | 1 |
| + 6 more direct sellers in the full tree | |||
478 resellers, intermediary not matched to a direct seller of this app (the intermediary's domain is not a direct seller of this app: 38; not cross-checked yet: 72; account not found in the ad system's sellers.json: 301; sellers.json lists the account as a publisher, not an intermediary: 47; the ad system publishes no usable sellers.json: 16; the seller is confidential in sellers.json: 4).
Seller IDs the networks do not list
311 lines of this app-ads.txt name an account ID that the ad system's sellers.json does not contain; the first 15 in file order. Usually a stale line or a typo in the ID. How to fix it
| Line | Ad system | Account ID | Relationship |
|---|---|---|---|
| 3 | appodeal.com | 66295 | DIRECT |
| 5 | bidmachine.io | 66295 | DIRECT |
| 14 | uis.mobfox.com | 1729 | DIRECT |
| 17 | conversantmedia.com | 100331 | RESELLER |
| 18 | sonobi.com | 71169bd4a5 | RESELLER |
| 20 | inmobi.com | a5e661acdc384e91a79a58eb3418e99f | RESELLER |
| 24 | indexexchange.com | 199442 | DIRECT |
| 25 | indexexchange.com | 199442 | RESELLER |
| 26 | contextweb.com | 562757 | RESELLER |
| 38 | applovin.com | c8802c2788bab3703acc24cf065d5390 | RESELLER |
| 40 | applovin.com | 0b8086e03d0f715f09a9e6e5dbdbb4b8 | RESELLER |
| 41 | applovin.com | 94bf1c89704c8e6a46341999e25b1b90 | RESELLER |
| 43 | inmobi.com | fafa1521dbdb43f69b1eb199a0b007fd | RESELLER |
| 46 | indexexchange.com | 184738 | RESELLER |
| 47 | openx.com | 537124160 | RESELLER |
More apps from AIHUNTERS, UAB
New to these files? What is app-ads.txt · Network directory · Glossary
Last crawled Mon, Oct 12, 2026 1:23 PM. Data derived from the public store listing, the developer's app-ads.txt and the ad systems' sellers.json files.